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Analog Devices Inc./Maxim Integrated MAX8510ETA25+T
- Part No.:
- MAX8510ETA25+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
MAX8510ETA25+T.pdf
- Description:
- IC REG LINEAR 2.5V 120MA 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:147,495
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Product details
Overview
MAX8510ETA25+T from Maxim Integrated is a 2.5V, ultra-low-noise, low-dropout linear regulator delivering up to 120mA output current with 120mV dropout at full load, 11μVRMS output noise (100Hz–100kHz), 78dB PSRR at 1kHz, and 40μA ground current - designed for RF-sensitive power rails in portable wireless devices.
For engineers reviewing the MAX8510ETA25+T datasheet, MAX8510ETA25+T pinout, MAX8510ETA25+T application, or MAX8510ETA25+T equivalent, key selection criteria include verified ultra-low noise performance, TDFN-8 package thermal characteristics (θJA = 83.9°C/W), shutdown current <1μA, stability with 1μF ceramic output capacitor, and compatibility with 2V–6V input range.
Technical Context
The MAX8510ETA25+T uses a P-channel MOSFET pass transistor (RDS(ON) ≈ 1Ω) enabling low dropout and minimal quiescent current across load and temperature. Its bandgap reference (1.225V) feeds an error amplifier that controls gate drive to maintain precise 2.5V output under line/load transients.
Noise reduction is achieved via dedicated BP pin with 10nF bypass capacitor to OUT, isolating the internal noise bypass circuit from the output node. Shutdown logic disables reference, error amp, and gate driver, reducing supply current to <1μA while placing OUT in high-impedance state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±2% over 100µA–80mA load and -40°C to +85°C - ensures stable core voltage for 2.5V logic or analog circuitry. |
| Dropout Voltage | 120mV at 120mA load (VOUT ≥ 3V); 135mV at 120mA for 2.5V output - enables operation down to VIN = 2.63V, extending battery life in single-cell Li-ion systems. |
| Output Noise | 11μVRMS (100Hz–100kHz) with 10nF BP capacitor - meets stringent noise requirements for VCOs, ADC references, and RF front-end biasing. |
| PSRR | 78dB at 1kHz, 54dB at 100kHz - suppresses switching noise from upstream DC/DC converters feeding sensitive analog subsystems. |
| Ground Current | 40μA typical at light load; 220μA in dropout - minimizes standby power loss in always-on sensor or Bluetooth modules. |
| Shutdown Current | <1μA at TA = +25°C - supports deep-sleep modes in portable equipment without compromising system-level power budget. |
| Stability | Guaranteed stable with 1μF X7R/X5R ceramic output capacitor - eliminates need for costly tantalum or large-case ceramics, reducing BOM cost and PCB area. |
Pinout & Package
MAX8510ETA25+T is housed in an 8-pin TDFN-EP package (2mm × 2mm × 0.8mm) with exposed pad (EP) internally connected to GND. Thermal resistance θJA = 83.9°C/W enables reliable 120mA operation in compact layouts when EP is soldered to a thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Unregulated input supply | Accepts 2V–6V input; requires 1μF ceramic decoupling close to pin for EMI suppression and transient response. |
| 2 (GND) | Ground reference and thermal path | Primary return path; EP must be soldered to large copper pour to achieve rated θJA and prevent thermal shutdown at full load. |
| 3 (SHDN) | Active-low enable control | Pull ≤0.4V to disable regulator; logic-high ≥1.5V enables; input bias current <0.01μA enables direct GPIO control without pull-up loading. |
| 4 (BP) | Noise bypass terminal | Connect 10nF capacitor to OUT to shunt internal reference noise; open or shorted in shutdown - critical for achieving 11μVRMS spec. |
| 5 (OUT) | Regulated 2.5V output | Delivers up to 120mA; requires 1μF ceramic capacitor to GND; high-impedance during shutdown. |
| 6, 7, 8 (N.C.) | No connection | Not internally bonded; no electrical function - leave unconnected per datasheet. |
| EP | Exposed thermal pad | Internally tied to GND; mandatory for thermal performance; must be soldered to PCB ground plane with ≥6 thermal vias. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low output noise | 11μVRMS (100Hz–100kHz) with 10nF BP cap - enables clean power for RF synthesizers and precision ADCs without additional filtering. |
| High PSRR at RF frequencies | 54dB at 100kHz - rejects noise from high-frequency DC/DC converters commonly used in portable designs. |
| Low dropout with P-MOSFET | 120mV at 120mA - sustains regulation through battery discharge curve down to ~2.63V, maximizing usable cell capacity. |
| Minimal external components | Only IN and OUT 1μF ceramics required - reduces bill-of-materials and layout complexity versus LDOs needing multiple capacitors or resistors. |
| Robust protection | Thermal shutdown (160°C, 10°C hysteresis) and current limit (130–300mA) - prevents damage during fault conditions without external circuitry. |
Applications
| Bluetooth Radio Module | Digital Camera Image Sensor Bias |
|---|---|
Use Scenario: Powering the RF transceiver IC and crystal oscillator in a Bluetooth 5.0 LE audio headset. IC Role / Device Role / Timing Role: Low-noise 2.5V supply for VCO tuning voltage and LNA bias, ensuring minimal phase noise and EVM degradation. Use Value: 11μVRMS noise and 78dB PSRR prevent AM-to-PM conversion in the RF chain, maintaining >80dB ACLR in 2.4GHz transmission. |
Use Scenario: Providing analog supply to CMOS image sensor's column ADC and pixel array in a compact action camera. IC Role / Device Role / Timing Role: Clean 2.5V rail for analog signal chain, decoupled from noisy digital core and flash LED drivers. Use Value: Stability with 1μF ceramic capacitor allows placement directly adjacent to sensor die, minimizing trace inductance and preserving SNR >65dB. |
| Portable Medical Pulse Oximeter | Industrial Wireless Sensor Node |
Use Scenario: Supplying the photodiode transimpedance amplifier and analog front-end in a battery-powered oximeter. IC Role / Device Role / Timing Role: Ultra-low-noise 2.5V reference for precision current-to-voltage conversion and ADC reference buffer. Use Value: 11μVRMS noise ensures sub-0.1% measurement error in weak IR/Red photocurrent detection, critical for SpO₂ accuracy. |
Use Scenario: Powering LoRaWAN sub-GHz transceiver and MEMS accelerometer in a sealed environmental monitor. IC Role / Device Role / Timing Role: Primary 2.5V supply enabling long-term operation on coin-cell or energy-harvested source. Use Value: 40μA quiescent current and <1μA shutdown extend 10-year battery life; TDFN-8 footprint fits constrained IoT enclosure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B251MR-G | 2.5V fixed, 100mA max, 150mV dropout at 100mA, 25μVRMS noise, SOT-25 package | Larger dropout and higher noise limit use in RF or high-precision analog; suitable for cost-sensitive consumer audio. | Select when lower BOM cost and SOT-25 compatibility outweigh noise/dropout requirements. |
| Analog Devices ADP125ARHZ-2.5-R7 | 2.5V fixed, 500mA max, 135mV dropout at 500mA, 40μVRMS noise, 8-lead LFCSP | Higher current capability but 3.6× higher noise; larger package increases PCB area and thermal mass. | Choose only if system requires >120mA or needs integrated soft-start; avoid for noise-critical RF sections. |
Compared with XC6219B251MR-G and ADP125ARHZ-2.5-R7, the MAX8510ETA25+T uniquely delivers 11μVRMS noise and 120mV dropout in a 2mm × 2mm footprint - making it irreplaceable for space-constrained, ultra-low-noise applications where RF integrity or precision analog performance is non-negotiable.
Availability
MAX8510ETA25+T is available at Aetrix Electronics and suitable for Bluetooth radios, digital camera sensors, portable medical monitors, and industrial wireless sensor nodes requiring stable component supply, RoHS-compliant packaging, and guaranteed long-term availability.
Supply support for MAX8510ETA25+T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs high-performance analog, mixed-signal, and power management ICs for demanding applications in communications, computing, and industrial systems.
The MAX8510 series belongs to Maxim's ultra-low-noise LDO portfolio, engineered specifically for powering noise-sensitive RF, precision analog, and battery-operated portable electronics where PSRR, dropout, and quiescent current are critical.
FAQ
What is the maximum input voltage rating for MAX8510ETA25+T?
The MAX8510ETA25+T has an absolute maximum input voltage of +7V (IN to GND), but its operational input range is specified from 2V to 6V. Operating above 6V risks exceeding safe power dissipation limits and may trigger thermal shutdown; for 2.5V output, VIN should remain ≤6V to ensure reliability and stay within the 120mA continuous output capability.
Does MAX8510ETA25+T require an external bypass capacitor on the BP pin?
Yes, the MAX8510ETA25+T requires a 10nF capacitor between BP and OUT to achieve its specified 11μVRMS output noise. Without this capacitor, noise rises to 230μVRMS (per MAX8511/MAX8512 data). The BP pin is shorted to OUT during shutdown, so the capacitor remains functional in both active and disabled states.
Can MAX8510ETA25+T be used with X7R ceramic output capacitors?
Yes, the MAX8510ETA25+T is fully stable with 1μF X7R ceramic output capacitors across its full operating temperature range (-40°C to +85°C). Unlike Z5U or Y5V dielectrics, X7R maintains sufficient capacitance and low ESR at low temperatures, eliminating need for larger capacitors and simplifying design for portable applications.
What thermal considerations apply to the EP pad of MAX8510ETA25+T?
The exposed pad (EP) of MAX8510ETA25+T is internally connected to GND and must be soldered to a PCB ground plane with ≥6 thermal vias to achieve the rated θJA of 83.9°C/W. Inadequate EP thermal relief causes junction temperature to exceed 150°C at 120mA, triggering thermal shutdown and degrading long-term reliability.
Is MAX8510ETA25+T pin-compatible with other MAX8510 variants?
Yes, all MAX8510 variants in the TDFN-8 package (e.g., MAX8510ETA33+T, MAX8510ETA45+T) share identical pinout and footprint. Only the output voltage differs - the MAX8510ETA25+T delivers 2.5V, while others provide 3.0V, 3.3V, or 4.5V - enabling drop-in replacement in designs where voltage tolerance permits.
MAX8510ETA25+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.135V @ 120mA (Typ)
- Current - Output:
- 120mA
- Current - Quiescent (Iq):
- 90 µA
- Current - Supply (Max):
- -
- PSRR:
- 78dB ~ 54dB (1kHz ~ 100kHz)
- Control Features:
- Shutdown
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN-EP (2x2)
MAX8510ETA25+T FAQ
1.How can I place an order for MAX8510ETA25+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX8510ETA25+T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX8510ETA25+T reliable?
The price and inventory of MAX8510ETA25+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX8510ETA25+T is usually 5 days.
3.What payment methods are accepted for MAX8510ETA25+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX8510ETA25+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX8510ETA25+T?
MAX8510ETA25+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX8510ETA25+T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX8510ETA25+T?
For technical support, including MAX8510ETA25+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX8510ETA25+T requirements.
6.How does Aetrix verify that MAX8510ETA25+T is sourced from the original manufacturer or authorized distributors?
All MAX8510ETA25+T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX8510ETA25+T meets industry standards.
7.What is the process for return or replacement of MAX8510ETA25+T?
All MAX8510ETA25+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX8510ETA25+T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX8510ETA25+T part is unused and in its original packaging.
Return procedure for MAX8510ETA25+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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